Ingrain carpet fabric



(Specimens W. B. KEEPER. INGRAIN CARPET FABRIC.

No. 443,095. Patented Dec. 23, 18 90.

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UNITED STATES PATENT OFFICE.

IVILLIAM B. KEEFER, OF PHILADELPHIA, PENNSYLVANIA.

INGRA IN CARPET FABRIC.

SPECIFICATION forming part of Letters Patent No. 443,095, dated December 23, 1890.

Application filed June 9. 1890. Serial No. 354,819. (Specimens.)

To all whom it may concern:

Be it known that 1, WILLIAM B. KEEFER, a citizen of the United States, residing at Philadelphia, (Germantown,) in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Ingrain Carpet Fabrics, which improvement is fully set forth in the following specification and accompanying drawings.

My invention belongs to a class of carpet fabrics known to the trade as ingrains.

In the old method of weaving a two-ply ingrain carpet four figuring and binding weftthreads and four warp-threads are required in a set or weave, and most all two-ply ingrains are woven by the Jacquard machine, and four journals and one card for each two shots of weft.

While my improved carpet fabric may justly be termed an ingrain, it is not properly speaking a two-ply, and yet it is more than a single ply.

To weave my improved carpet fabric figured I require a Jacquard machine, three journals, three warps, and four weft-threads in a set or weave, one pattern-card for the first two shots of weft, and one card for each of the other two shots, requiring three cards to a weave. The Jacquard pattern-cards and journals are solely to produce the fabric figured. The fabric plain may be produced by heddles and treadles.

The object of my improvement is to weave and produce an ingrain carpet fabric at less cost for materials than the ordinary two-ply ingrain carpet, and which improved fabric for wear shall be superior to the ordinary two-ply ingrain carpet.

My improved carpet fabric is produced without pockets, the face and back of the carpet being firmly tied one to the other throughout the whole fabric.

My invention consists in the combination of three warp and four weftthreads ina set or weave, and so interwoven as will produce an ingrain carpet fabric without pockets; and this object I attain in the manner I will now proceed to describe, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a longitudinal section in line with the warp-threads, showing the arrangements of warp and weft threads to produce my improved weave. Fig. 2 is alongitudinal section, same as Fig. 1, butbroken up into five sets or weaves.

Similar letters and numbers refer to similar threads in the several figures.

The weft-threads are indicated by the letters A, B, D, and IV, the warp-threads by figures 1, 2, and 3. These threads may be of such color as desired.

In arranging the warp in the 100111 and J acquard harness I divide the warp-threads and harness into three parts. Each part is connected to a journal, making three journals to the harness, and a thread from each journal in each split of the reed, three ends in a split. The color of the weft and warp threads will be such as will best suit the design to be woven. The warp-threads will be lifted and dropped as they are controlled by the cards and journals. The weft-threads will be picked in as controlled by the shuttle-box motion, which is set to suit the design to be wovenla In Fig. 1, the first shot of weft, warp-thread 1 is up, warp-threads 2 and 3 are down, and B is the weft. The second shot, warp-threads 1 and 3 are up and 2 is down, and D is the weft. The third shot, warp-thread 2 is up, 1 and 3 are down, 1V is the weft. The fourth shot, 1 and 2 warp-threads are up, 3 is down, A is the weft. This makes a weave or set. Five sets are shown in Figs. 1 and 2. It will be noticed that when the top weft-thread is put in, one warp-thread of the set is up and two down, and when the lower weft is put in two warp-threads are up and one warpthread is down. By this arrangement one warp-thread is always on top, one on the bottom, and one in the center, as shown in the drawings.

Having as above fully described my invention, what I claim, and desire to secure by Letters Patent, is

An ingrain carpet fabric having two weft the \WHP and weft-threads securely into a homogeneous fabric without pockets, substantially as shown and described.

WILLIAM B. KEEPER. Witnesses:

JOHN SI-IINN, FERDINAND L. KIBBY. 

